David Bennett Grinsfelder, MD
NPI 1568966174ActiveIndividual· Internal Medicine· Dallas, TX
Internal Medicine (MD) in Dallas, Texas, trained at Texas Tech University Health Science Center School of Medicine (class of 2018). Their prescriptions cost Medicare Part D more than their services did: $788,198 for 9,754 claims, against $296,655 paid for services in 2024. Cleerly, Inc. was the largest of 3 companies reporting payments in 2025, $103.24 in all, mostly food and beverage.
Overview
| NPI | 1568966174 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 19, 2018 |
| Last updated in NPPES | Apr 6, 2022 |
| Certified by provider | Apr 6, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | T1950 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 661 |
|---|---|
| Services billed | 8,549 across 55 procedure codes |
| Paid by Medicare | $296,655 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,754 · 21,954 30-day fills |
|---|---|
| Patients | 780 |
| Total drug cost | $788,198 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Texas Tech University Health Science Center School of Medicine |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Texas Medical Group PADallas, TX · 11 clinicians
Hospital affiliations
- Baylor University Medical CenterDallas, TX
- Texas Health Presbyterian Hospital DallasDallas, TX
Other facilities
- Dfw Home HealthHome health agency · Dallas, TX
- Vitalcaring GroupHome health agency · Sulphur Springs, TX
- Baylor Scott & White Institute for RehabilitationInpatient rehabilitation facility · Dallas, TX
Industry payments (Open Payments)
- 2025$103.24 · 3 payments from 3 companies
- 2024$110.96 · 4 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Cleerly, Inc. | $67.96 | 1 |
| Glaxosmithkline, LLC. | $18.10 | 1 |
| Echosens North America, Inc. | $17.18 | 1 |
What the 2025 payments were for
- Food and Beverage$103.24 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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